A system of aquaculture in which the waste produced the by farmed fish, or other aquatic animals, supplies nutrients for plants grown hydroponically, which in turn purify the water.
Example of Aquaponics:
Many contemporary urban farmers around the United States have integrated the practice of aquaponics into agriculture. The practice of aquaponics includes raising certain fish species, such as tilapia to add nitrogen in the water. Then, gravity is being used to transport this nitrogen rich water to nourish the hydroponic vegetable beds that are growing below the fish pond.